▎ 摘　　要

NOVELTY - Amorphous iron oxide nanoparticle/multilayer graphene composite material comprises multilayer graphene without activation on the surface prepared by ultrasonic method as the substrate, and the amorphous iron oxide nanoparticles are uniformly covered on the surface of the multilayer graphene. USE - Used as amorphous iron oxide nanoparticle/multilayer graphene composite material. ADVANTAGE - The material has high electrochemical activity; can provide conductive networks and potential applications in supercapacitor cathode materials and lithium-ion battery cathode materials. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing the amorphous iron oxide nanoparticle/multilayer graphene composite material.